| 毛冬青化学成分的研究II: 毛冬青皂苷甲的化学结构 |
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| 引用本文： | 秦国伟,陈政雄,徐任生,蒋仲芳,梁敬国. 毛冬青化学成分的研究II: 毛冬青皂苷甲的化学结构[J]. 化学学报, 1987, 45(3): 249-255 |
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| 作者姓名： | 秦国伟 陈政雄 徐任生 蒋仲芳 梁敬国 |
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| 作者单位： | 中国科学院上海药物研究所;广州市医药工业研究所 |
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| 摘 要： | 从毛冬青的根皮中分得一种新的三萜皂苷,命名为毛冬青皂苷甲,经^1H NMR、^1^3C NMR、MS、IR、UV和化学转化产物的研究,推定它为3β,19α-二羟基-乌索-12-烯-24,28-二羧酸-28-β-D-葡萄吡喃糖基酯.
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| 关 键 词： | 紫外分光光度法 化学成分 红外分光光度法 皂角苷 质谱法 核磁共振谱法 碳13核磁共振谱法 吡喃糖 葡萄糖 毛冬青 |
Studies on the chemical constituents of Ilex pubescens Hook et Am II: The structure of ilexsaponin A |
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| QIN GUOWEI,CHEN ZHENGXIONG,XU RENSHENG,JIANG ZHONGFANG,LIANG JINGGUO. Studies on the chemical constituents of Ilex pubescens Hook et Am II: The structure of ilexsaponin A[J]. Acta Chimica Sinica, 1987, 45(3): 249-255 |
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| Authors: | QIN GUOWEI CHEN ZHENGXIONG XU RENSHENG JIANG ZHONGFANG LIANG JINGGUO |
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| Abstract: | A new saponin, named ilexsaponin A (I), was isolated from the roots of I. pubescens and its structure elucidation is reported. I, white needles, C36H56O11, m.p. 285-287?(decompn.), [a]D11 + 39.2? who has pos. to the Liebermann-Burchard test. By hydrolysis with 5% H2SO4-EtOH, I afforded glucose and saponin (II), C30H46O5, which was converted to several derivatives When I was hydrolyzed with 2% HCl-MeOH, 3 artifact sapogenins were formed, which were also converted to several derivatives The structure of I was shown to be 3b,19a-dihydroxy-urs-12-ene-24,28-dioic acid-28-b-D-glycopyranosyl ester by the above chem. conversions and spectral anal. of 13C NMR, 1H NMR, MS, IR and UV. II is a new 19a-hydroxyursane sapogenin. |
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| Keywords: | ULTRAVIOLET SPECTROPHOTOMETRY CHEMICAL COMPOSITION INFRARED SPECTROPHOTOMETRY SAPONINS MASS SPECTROGRAPHY NMR SPECTROMETRY C13 NMR SPECTROMETRY PYRANOSE GLUCOSE ILEX PUBESCENS |
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